Home / 71,019.42-98,009.70-40,814.21

Finding the Fourth Proportional to 71,019.42, 98,009.70 and 40,814.21

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Solution

The fourth proportional to 71,019.42, 98,009.70 and 40,814.21 is: 56,325.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,019.42 : 98,009.70 = 40,814.21 : x
  2. Step 2: Convert to fraction form
    71,019.42/98,009.70 = 40,814.21/x
  3. Step 3: Cross multiply
    71,019.42x = 98,009.70 × 40,814.21
  4. Step 4: Simplify right side
    71,019.42x = 4,000,188,569.81
  5. Step 5: Solve for x
    x = 4,000,188,569.81/71,019.42
  6. Step 6: Final answer
    x = 56,325.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.